Hidden units

[Mowgli]

IMO, the Russians just weren't tactical thinkers like the Western allies or Germans.  The one exception was Stalingrad in the city itself.  Everything else I have ever read were some companies, but mostly whole bns tasked to do something that the Western armies were doing with Companies and Platoons and sometimes Squads.  For them, it seemed like a numbers game.  That is the way it has always come across to me.

To be fair I don't imagine units that are "concealed" in tems of the game mechanics to be carrying out some kind of ruse or stealth operation. I just take it as the way in which the game engine handles some situations. E.g. infantry defending the EDGE of a village -> tanks should not be allowed to influict many casualties, unless infantry has done the scouting (by means of an assault). 

As for the size of soviet units: The game severely punishes you for splitting up soviet companies into platoons. Platoon-sized soviet units disrupt almost immediately because they need to test against their morale very often (chance for a morale test after taking losses = "losses / losses + 5" for platoon-sized units) and they have a horrible morale. The smaller the unit, the more often it will be forced to test for morale -> no problem for fresh, high morale Wehrmacht units, catastrophical for low morale soviet units.